Unable to receive text messages from iPhones on every carrier except the carrier I left?

[AuPoc]

I just recently switched from Appalachian Wireless (Local Company) and iPhone 13 Pro Max to AT&T and the Galaxy S22 Ultra.  I deactivated iMessage and Facetime before switching over, and have since then confirmed on iTunes website that my number is no longer listed in iMessage.  My issue is that I can receive text messages from iPhones on every carrier except for the carrier that I just left (Appalachian Wireless) I can receive Multimedia messages and group messages (even though they come through like they're individual messages).  

I've restarted my phone several times, even reset it.  Deleted my messaging apps and downloaded new ones to see if it is a permission issue. Does anyone have any advice or a fix for this?

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[d_spi · Accepted solution]

Good afternoon @AuPoc I hope you're doing well. 

I'm sorry to hear that you're unable to recieve text messages from certain carriers. 

Unfortunately there's no way around that issue but to contact your carrier about this problem.

[Dosisek]

It took mine almost 8 hours to work properly. Apple is slow to actually release the number off there servers

[AuPoc]

Mine has been over a week.

[Dosisek]

Has google RCS let you register the number?

[AuPoc]

How do I check that?

[Dosisek]

It you try to enable chat features in the settings of google messages or samsung messages.

[Dosisek]

It's worth a shot.

[AuPoc]

This says connected. Is that where I should be looking?